示例#1
0
// GetSyncSubs implements the datastore.Syncer interface
func (d *Data) GetSyncSubs(synced dvid.Data) (datastore.SyncSubs, error) {
	if d.syncCh == nil {
		if err := d.InitDataHandlers(); err != nil {
			return nil, fmt.Errorf("unable to initialize handlers for data %q: %v\n", d.DataName(), err)
		}
	}

	var evts []string
	switch synced.TypeName() {
	case "labelblk": // For down-res support
		evts = []string{
			DownsizeBlockEvent, DownsizeCommitEvent,
			labels.IngestBlockEvent, labels.MutateBlockEvent, labels.DeleteBlockEvent,
		}
	case "labelvol":
		evts = []string{labels.MergeBlockEvent, labels.SplitLabelEvent}
	default:
		return nil, fmt.Errorf("Unable to sync %s with %s since datatype %q is not supported.", d.DataName(), synced.DataName(), synced.TypeName())
	}

	subs := make(datastore.SyncSubs, len(evts))
	for i, evt := range evts {
		subs[i] = datastore.SyncSub{
			Event:  datastore.SyncEvent{synced.DataUUID(), evt},
			Notify: d.DataUUID(),
			Ch:     d.syncCh,
		}
	}
	return subs, nil
}
示例#2
0
// StartInstancePush initiates a data instance push.  After some number of Send
// calls, the EndInstancePush must be called.
func (p *PushSession) StartInstancePush(d dvid.Data) error {
	dmsg := DataTxInit{
		Session:    p.s.ID(),
		DataName:   d.DataName(),
		TypeName:   d.TypeName(),
		InstanceID: d.InstanceID(),
	}
	if _, err := p.s.Call()(StartDataMsg, dmsg); err != nil {
		return fmt.Errorf("couldn't send data instance %q start: %v\n", d.DataName(), err)
	}
	return nil
}
示例#3
0
文件: sync.go 项目: tartavull/dvid
// GetSyncSubs implements the datastore.Syncer interface.  Returns a list of subscriptions
// to the sync data instance that will notify the receiver.
func (d *Data) GetSyncSubs(synced dvid.Data) (subs datastore.SyncSubs, err error) {
	if d.syncCh == nil {
		if err = d.InitDataHandlers(); err != nil {
			err = fmt.Errorf("unable to initialize handlers for data %q: %v\n", d.DataName(), err)
			return
		}
	}

	// Our syncing depends on the datatype we are syncing.
	switch synced.TypeName() {
	case "labelblk":
		subs = datastore.SyncSubs{
			{
				Event:  datastore.SyncEvent{synced.DataUUID(), labels.IngestBlockEvent},
				Notify: d.DataUUID(),
				Ch:     d.syncCh,
			},
			{
				Event:  datastore.SyncEvent{synced.DataUUID(), labels.MutateBlockEvent},
				Notify: d.DataUUID(),
				Ch:     d.syncCh,
			},
			{
				Event:  datastore.SyncEvent{synced.DataUUID(), labels.DeleteBlockEvent},
				Notify: d.DataUUID(),
				Ch:     d.syncCh,
			},
		}
	case "labelvol":
		subs = datastore.SyncSubs{
			datastore.SyncSub{
				Event:  datastore.SyncEvent{synced.DataUUID(), labels.MergeBlockEvent},
				Notify: d.DataUUID(),
				Ch:     d.syncCh,
			},
			datastore.SyncSub{
				Event:  datastore.SyncEvent{synced.DataUUID(), labels.SplitLabelEvent},
				Notify: d.DataUUID(),
				Ch:     d.syncCh,
			},
		}
	default:
		err = fmt.Errorf("Unable to sync %s with %s since datatype %q is not supported.", d.DataName(), synced.DataName(), synced.TypeName())
	}
	return
}
示例#4
0
// DeleteDataInstance removes a data instance across all versions and tiers of storage.
func DeleteDataInstance(data dvid.Data) error {
	if !manager.setup {
		return fmt.Errorf("Can't delete data instance %q before storage manager is initialized", data.DataName())
	}

	// Determine all database tiers that are distinct.
	dbs := []OrderedKeyValueDB{manager.mutable}
	if manager.mutable != manager.immutable {
		dbs = append(dbs, manager.immutable)
	}

	// For each storage tier, remove all key-values with the given instance id.
	dvid.Infof("Starting delete of instance %d: name %q, type %s\n", data.InstanceID(), data.DataName(), data.TypeName())
	ctx := NewDataContext(data, 0)
	for _, db := range dbs {
		if err := db.DeleteAll(ctx, true); err != nil {
			return err
		}
	}
	return nil
}
示例#5
0
// DeleteDataInstance removes a data instance.
func DeleteDataInstance(data dvid.Data) error {
	if !manager.setup {
		return fmt.Errorf("Can't delete data instance %q before storage manager is initialized", data.DataName())
	}

	// Get the store for the data instance.
	store, err := data.BackendStore()
	if err != nil {
		return err
	}
	db, ok := store.(OrderedKeyValueDB)
	if !ok {
		return fmt.Errorf("store assigned to data %q is not an ordered kv db with ability to delete all", data.DataName())
	}

	dvid.Infof("Starting delete of instance %d: name %q, type %s\n", data.InstanceID(), data.DataName(), data.TypeName())
	ctx := NewDataContext(data, 0)
	if err := db.DeleteAll(ctx, true); err != nil {
		return err
	}
	return nil
}
示例#6
0
文件: web.go 项目: janelia-flyem/dvid
// BadAPIRequest writes a standard error message to http.ResponseWriter for a badly formatted API call.
func BadAPIRequest(w http.ResponseWriter, r *http.Request, d dvid.Data) {
	helpURL := path.Join("api", "help", string(d.TypeName()))
	msg := fmt.Sprintf("Bad API call (%s) for data %q.  See API help at http://%s/%s", r.URL.Path, d.DataName(), GetConfig().Host(), helpURL)
	http.Error(w, msg, http.StatusBadRequest)
	dvid.Errorf("Bad API call (%s) for data %q\n", r.URL.Path, d.DataName())
}